Layer 2 Switch Security Requirements Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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The layer 2 switch must have all disabled switch ports assigned to an unused VLAN.
<VulnDiscussion>It is possible that a disabled port that is assigned to a user or management VLAN becomes enabled by accident or by an attack...Rule Medium Severity -
SRG-NET-000512
<GroupDescription></GroupDescription>Group -
The layer 2 switch must not have the default VLAN assigned to any host-facing switch ports.
<VulnDiscussion>In a VLAN-based network, switches use the default VLAN (i.e., VLAN 1) for in-band management and to communicate with other ne...Rule Medium Severity -
SRG-NET-000512
<GroupDescription></GroupDescription>Group -
The layer 2 switch must have the default VLAN pruned from all trunk ports that do not require it.
<VulnDiscussion>The default VLAN (i.e., VLAN 1) is a special VLAN used for control plane traffic such as Spanning-Tree Protocol (STP), Dynami...Rule Medium Severity -
SRG-NET-000512
<GroupDescription></GroupDescription>Group -
The layer 2 switch must not use the default VLAN for management traffic.
<VulnDiscussion>Switches use the default VLAN (i.e., VLAN 1) for in-band management and to communicate with directly connected switches using...Rule Medium Severity -
SRG-NET-000512
<GroupDescription></GroupDescription>Group -
The layer 2 switch must have all user-facing or untrusted ports configured as access switch ports.
<VulnDiscussion>Double encapsulation can be initiated by an attacker who has access to a switch port belonging to the native VLAN of the trun...Rule Medium Severity -
The layer 2 switch must have the native VLAN assigned to an ID other than the default VLAN for all 802.1q trunk links.
<VulnDiscussion>VLAN hopping can be initiated by an attacker who has access to a switch port belonging to the same VLAN as the native VLAN of...Rule Medium Severity
Node 2
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